Speaker



FIG. 1 is a perspective view of a speaker;

FIG. 2 is a front view thereof;

FIG. 3 is a plan view thereof;

FIG. 4 is an opposite plan view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof.

The broken lines showing on the front face of FIGS. 1-2 defines the boundaries of the claimed design and form no part thereof. The remaining broken lines showing the speaker is for illustrative purposes only and form no part of the claimed design.

The rear view contains no ornamentality and is therefore omitted. 

The ornamental design for speaker, as shown and described. 